Improvement in thread-winding devices for sewing-machine bobbins



IUNrTE-D STATES PATENT OEEICE.

FREDERICK H. DRAKE, OF MIDDIJETCVN, CONNECTICUT.

IMPROVEMENT IN THREAD-WINDING DEVICES FOR SEWING-MACHINE BOBBINS.'

4Specification forming part of Letters Patent N0. 43,839, dated August 16, 1864; antedated August 4, 1864.

To all whom it 'may concern:

Beit known that I, FREDERICK H. DRAKE, of the town of Middletown, in the county ot' Middlesex and State of Connecticut, have invented a new and Improved Mode of Winding the Thread Upon the Bobbins of Sewing-Machines;

and I do hereby declare that the following is l a i'ull and exact description thereof, reference heilig had tothe accompanying drawings, and to the letters of reference/marked thereon.

The nature of my invention consists inattaching to any ofthe bobbin-winders no7 used upon sewing-machines a movable roller or guide and a pressure-pad, the roller to act as a guide to the thread while being wound upon the bobbin and the pressure-pad, in combination with said guide to secure the thread to he wound backward and forward under the pressure-pad upon the bobbin in exact and uniform layers, the pressure of the pad causing the thread vto run perfectly and uniformly.

' By means of my invention, when the vthread is unwou'nd from the hobbin for the purpose of feeding the sewing-machine, I secure an eX- act and uniform tension to the thread when sewing, and, as the thread is wound upon the bobbin evenly and without ridges, I am enabled to wind larger quantities upon thesameszed hobbin than could be wound if the same were wound enevenly, as it is, so far as I am aware, by any other method now in use.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

Figure 1 of the accompanying drawings represents the instrument complete and ready for adjustment to the sewing-machine. Fig. 2 is a side view of the pressure-pad and spring attached. Fig. 3 represents a front or top view ofthe pressure-pad detached from the bobbin. Fig. 4 represents a side view of the movable guide detached from the horizontal shaft upon which it plays. Fig. 5 represents an end view of said movable guide. Fig. 6 represents the bobbin detached with the thread wound there on. v

I attach the thread a to be wound to the bobbiu b by passing it over the guide c, with the pressure-pad d down upon the top surface ot' the thread a and bobbin b, ready for winding. As the thread a, is wound upon the bobbin b it passes over the guider,l in a groove upon the surface of the same. The guide c plays easily backward and forward upon its shaft e e as the thread is being wound upon the bobbin b. The pressure-raid d is kept down upon the, thread a while being wound by its springf, which pressure-pad, in combination with the. guide c, prevents the thread from winding unevenly and with ridges upon the bobbin b. I apply lthe power to the bobbin-winder in the same manner as it is now applied to all other bobbin-winders now in use.

What I claim as tn v inveutiomand desiret secure by Letters Patent, is-

The'employment. of a pressure-pad, in combination with a horizontal shaft or axle, having thereon a n adjustable grooved roller as a guide to the thread for the winding of thread lupon the bobbins ofsewing-machines, asis described in the above specification and accompanying drawings.

Middletown, November 10, A. D. 1862.

FREDERIC K H. DRAKE.

Witnesses:

SAMUEL L. WARNER, ALBERT G. LUCAS. 

